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Zepler [3.9K]
2 years ago
6

What is the relation between confidence level (c) and significance level (a)?

Mathematics
2 answers:
RSB [31]2 years ago
4 0

Answer:

The confidence level is equivalent to 1 – the alpha level. So, if your significance level is 0.05, the corresponding confidence level is 95%. If the P value is less than your significance (alpha) level, the hypothesis test is statistically significant.

Step-by-step explanation:

viva [34]2 years ago
3 0

Answer:

The confidence level is equivalent to 1 – the alpha level. So, if your significance level is 0.05, the corresponding confidence level is 95%. If the P value is less than your significance (alpha) level, the hypothesis test is statistically significant.

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Factor completely: 2x3 + 6x2 + 10x + 30
qwelly [4]
The complete factor from:

2x3 + 6x2 + 10x + 30
2x(x+3) + 10(x+3)
(x+3)(2x+10)
2(x+5)(x+3)

hope this help
3 0
3 years ago
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If one zero of the quadratic polynomial x²+3x+k is 2, then the value of k is. [ ]
Alex_Xolod [135]

Answer:

b) -10

Step-by-step explanation:

x^2 + 3x + k = (x - 2)(x - a)

(x - 2)(x - a) = x^2 - 2x - ax + 2a = x^2 + [-2 - a)x] + 2a

-2 - a = 3

2a = k

a = -5

k = 2(-5) = -10

Answer: b) -10

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2 years ago
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How much is 78 cents per pound for 5 pounds
velikii [3]

Answer:

$3.90

Step-by-step explanation:

78 cents/lb * 5 lb = (78*5) cents = 390 cents (the pound labels divide out)

But 390 cents = $3.90

4 0
2 years ago
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Calculate (9²/3^4)^3​
Ilia_Sergeevich [38]

Answer:

1

Step-by-step explanation:

(9²/3⁴)³ = (81/81)³ = 1³ = 1

7 0
3 years ago
What are the slope and the y-intercept of the linear function that is represented by the graph?
Serhud [2]

Answer:

The first option

Step-by-step explanation:

The slope m can be calculated using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 2) and (x₂, y₂ ) = (3, 0) ← 2 points on the line

m = \frac{0+2}{3-0} = \frac{2}{3}

The y- intercept is the point on the y- axis where the line crosses, that is - 2

Thus slope = \frac{2}{3} and the y- intercept is - 2

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3 years ago
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